Staff Software Engineer, GTPN Platform

About Airwallex Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 250,000 businesses worldwide – including Brex, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us. Attributes We Value We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles . You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor. You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next. About the Team The Global Treasury and Payment Network (GTPN) team sits at the core of Airwallex’s payment infrastructure. As Airwallex’s very first product and still the largest revenue driver across the company, GTPN underpins many of our most critical customer experiences. We operate at the intersection of traditional and modern finance, expanding the reach of our global treasury and payment network, strengthening its capabilities and reliability, and delivering innovative payment products built on a robust financial foundation. GTPN is a truly global, cross-site engineering organization, with talented engineers in existing and emerging hubs such as the US, Singapore, Hong Kong, and Shanghai. As we continue to scale worldwide, we’re looking for passionate Senior Software Engineers to join us. You’ll collaborate closely with product managers, designers, and engineers across regions to build and enhance products that not only meet but exceed our customers’ expectations. Why Join Us Be Part of Something Big: Join a team that's redefining the future of finance. Your work will have a direct impact on our mission to revolutionize financial services and help millions of businesses grow globally. Grow With Us: At Airwallex, we're committed to your professional development. You'll have opportunities to learn, grow, and shape your career path in a fast-paced, innovative environment. Collaborate With the Best: Work with a team of talented and passionate individuals who are driven by the desire to create something extraordinary. What You’ll Do: Architect distributed payment systems at global scale: Design and evolve the core infrastructure spanning real-time local clearing, SWIFT, and proprietary treasury routing across 150+ countries. Solve hard financial integrity problems: Build idempotent, fault-tolerant systems that handle multi-currency reconciliation, async settlement, and compensation logic across unreliable banking partners. Own reliability and observability of the payment network : Define SLAs, design for graceful degradation during partner outages, and build the observability layer that surfaces payment health in real time. Use data to drive platform decisions: Leverage payment telemetry to optimise routing, identify bottlenecks, and measure the impact of infrastructure changes on settlement speed and conversion. Contribute to technical direction across a global team: Drive design reviews and RFC processes for platform-wide changes, collaborating across engineering hubs in the US, Singapore, Hong Kong, and Shanghai. Who you are We are looking for staff engineers with deep technical expertise and a strong track record of impact as a tech lead. Minimum qualifications: Experienced and Technically Proficient: You possess a wealth of experience in system architecturing and software development, with 7+ years working in modern engineering practices focused on continuous innovation and high-quality engineering. A Technical and Talent Bar Raiser: You set high standards and lead by example, elevating the capabilities of those around you. Empathetic and Insightful: Your deep empathy for customer needs drives your development process, allowing you to create intuitive and impactful products. This understanding is not just about meeting requirements, but enriching user experiences. Data-Driven and Analytical: You view data as a narrative element of development, a critical tool that informs your decision-making process. Your ability to interpret data enhances product performance and elevates user satisfaction, making you a pivotal member of our team. Collaborative and Knowledge-Sharing: True collaboration is second nature to you. You thrive in team settings and are committed to sharing knowledge and ideas, which you see as vital to fostering innovation. Your role as a coach involves mentoring peers and promoting a learning culture within the team. Adaptable and Continuously Learning: In the fast-paced world of fintech, you stand out for your agility and eagerness to adopt new skills and technologies. Challenges are opportunities for growth, and you are always prepared to expand your horizons. Proactive and Ownership-Driven: You are self-motivated and take initiative, demonstrating a strong sense of ownership in your projects. Your proactive approach ensures that you are always ahead of the curve, ready to take on responsibilities and lead projects to successful outcomes. A Highly Experienced and Inspirational Leader: You have successfully led a highly effective team that thrives in a dynamic and fast-paced environment previously. Your outstanding leadership and motivational abilities will be invaluable in mentoring the team, fostering a culture of innovation, and promoting technical excellence within the organization. Efficient and Prioritization-Savvy: You excel at prioritizing tasks, which enables you to manage your workload effectively while maintaining high standards of quality. This skill ensures that critical project components receive the attention they need without sacrificing overall progress. Applicant Safety Policy: Fraud and Third-Party Recruiters To protect you from recruitment scams, please be aware that Airwallex will not ask for bank details, sensitive ID numbers (i.e. passport), or any form of payment during the application or interview process. All official communication will come from an @ airwallex.com email address. Please apply only through careers.airwallex.com or our official LinkedIn page. Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary. Equal opportunity Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.